A single speck of dust is halfway between the size of an atom and the size of the entire planet. How can this be possible?

Atoms and dust

The statement that a single speck of dust is halfway between the size of an atom and the entire planet Earth is a fascinating way to think about scale, and it’s based on a logarithmic, not linear, scale.

A fun fact

On a linear scale, the size of a dust speck is nowhere near the midpoint between an atom and Earth. However, if we consider a logarithmic scale, which compares things in terms of orders of magnitude rather than absolute size, the idea becomes more meaningful.

Midpoint equals 30g

  • The mass of a carbon atom is approximately 1.67377×10 to the power of −24 kilograms.
  • The mass of Earth is about 5.9736×10 to the power of 24 kilograms.
  • On a logarithmic scale, the midpoint of these two masses would be around 10 to the power of −1.5, which is roughly 30 grams.

While 30 grams is heavier than what we’d typically consider a speck of dust, it’s not too far off when we’re looking at the vast difference in scale between an atom and the Earth.

So, proportionally speaking, a speck of dust’s mass is closer to the midpoint on a logarithmic scale, even though it’s not exactly halfway.

It’s a way to visualize and understand the immense range of scales in our universe, from the very small to the very large. It’s not meant to be a precise measurement but rather an illustration of the concept of scale.

Fact or fiction: More Japanese people have a pet than they do children?

Shiba Inu

It’s true. 2012 statistics show that citizens of Japan registered 21 million or so pets against 16.5 million children (under 15 years).

This is a problem for Japan as it has a growing elderly population. It means Japan has one older person for every three citizens. 33% of the population is elderly and not part of its workforce.

If this trend continues Japan is on course to lose around 40% of its workforce and that is a massive problem for Japan’s economy.

According to a survey conducted by Rakuten Insight in 2023, dogs were the most popular pets in Japan, followed by cats and fish. 

The most popular dog breeds in Japan were toy poodle, chihuahua, and Shiba Inu. Many Japanese people love their pets and treat them as part of their family.

Shiba Inu
More Japanese people have a pet than they do children?

‘Congratulations, as you’re the only one able to spell ‘gover ‘n’ ment’ correctly – you’ve got the job. Would you like education or something a little less taxing like… the treasury?’

Government job interview

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THE DEPARTMENT OF GOVERNMENT JOB DISTRIBUTION AND OTHER THINGS LIKE THAT

‘Congratulations, you’re the only one to spell ‘gover ‘n’ ment’ correctly – you’ve got the job. Would you like education or something a little less taxing like… the treasury?’

A billion is a big number – but just how big is it?

A billion

1000,000,000 (1 billion)

or

109 10 to the power of 9 (1 billion)

In the short scale system, which is commonly used in the UK, United States and most English-speaking countries, 1 billion is written as 1,000,000,000 or 109. This means that 1 billion is equal to 1 thousand million.

In the long scale system, which is commonly used in continental Europe and some other parts of the world, 1 billion is written as 1,000,000,000,000 or 1012. This means that 1 billion is equal to 1 million million.

Fun facts

If you tried to count to 1 million at an approximate rate of 1 number per second, it would take around 11 days. And that would be without sleeping or taking a rest in between the marathon quest. But if you were to count to 1 billion it would take you… wait for it… a cool 32 years!

But just imagine this, if you attempted to count to 1 trillion (1000,000,000,000) or 1012 at the same rate of 1 number per second and without sleep, rest or mistakes – it would take you about… 31,710 years! Give or take a year.

A little bit more

A million and 1 billion sound like BIG numbers, they are. But just how big…

Imagine this: 1 million seconds is roughly equal to 1 week. But, 1 billion seconds equates to about 33 years!

1 billion is a BIG number!

Fact or fiction? There was no news on 18th April 1930

No news

It’s true – or at least it was for a 1930’s BBC broadcaster

Apparently, the story goes that the most boring news day was 18th April 1930. Imagine turning on your radio ready to hear the news bulletin only to hear a BBC radio presenter announce, ‘There is no news!’

Can’t ever imagine that happening now – 24 hour news nonsense fills up all the gaps!

Fact or fiction? Chess moves outnumber atoms…

Atoms

Did you know that there are more moves in a game of chess than there are atoms in the Universe?

Well, it’s true.

The universe is so vast it is just mind bogglingly impossible to imagine how many atoms make it up. The estimated number of atoms in the universe is calculated at 10 to the power of 80 (1080).

But, the number of moves in a chess game is far greater coming in at a massive 10 to the power of 120 (10120).

This is known as the ‘Shannon number’.

So, there are more moves in a game of chess than there are atoms in the universe, as we know it Jim!

Party politics and petty petulance, an average day at No. 10 Downing Street

Party politics and petty petulance
Party politics and petty petulance – toys out the pram again at No. 10

Welcome politics at No. 10 Downing street

The phrase ‘throwing your toys out of the pram’ is a British idiom that means to behave in a childish or immature way when you are angry or frustrated. It is usually used to criticize someone who is acting unreasonably or making a fuss over something trivial.

Right now, it sums up everyday behaviour at No. 10 Downing Street.